作者:Christopher Krug、John F. Hartwig
DOI:10.1021/ja038819a
日期:2004.3.1
appeared to involve insertion, but the amido complexes formed from these insertions were not stable. Thus, reaction of 2 with 3b, followed by addition of Et3NHCl, gave the amine and ketimine products (Ph)(p-tol)CH-NHPh, 5, and (p-tol)(Ph)C=N(Ph), 6, in 25% and 50% yields. Several lines of data indicate that these products are formed by a sequence of transformations involving insertion of imine to give
制备了含有不稳定配位体的芳基铑 (I) 配合物,并研究了其对芳基亚胺的反应性。芳基铑 (I) 络合物 (DPPE)Rh(C5H5N)(p-tol), 2 以 65% 的产率从 [(DPPE)Rh(mu-Cl)]2、吡啶和对甲苯基锂中分离出来。2与醛亚胺(p-tol)CH=N(C6H4-p-CO2Me)(3a-Tol)的反应以88%的分离产率得到Rh酰胺插入产物4。4 的固态结构是通过单晶 X 射线衍射确定的。2 与电子中性和富电子醛亚胺 (Ph)CH=NPh (3b) 和 (p-tol)CH=N(C6H4-p-OMe) (3c) 的反应似乎也涉及插入,但由这些插入形成的酰氨基复合物不稳定。因此,2 与 3b 反应,然后加入 Et3NHCl,得到胺和酮亚胺产物 (Ph)(p-tol)CH-NHPh, 5,和 (p-tol)(Ph)C=N(Ph), 6、收益率分别为 25% 和 50%。几行数